Car roof



June 3, 1930, w. s. POWELL 05R ROOF Filed Jan. 6, 1 92s I 20 ments of parts hereinafter described and at most it will only be a very small amount/70 Patented June 3, 1930 I UNITED STATES PAT E 'n QFFICE WILLIAIW. G. POWELL, or iiLroonA, PENNSYLVANIA i V i s Application filed January '6, 1928. Serial No. 244,885.

This invention relates to car roofs of the portion of each sheet is extended to form all-steel riveted-up type wherein self supan integral carline 6 with the roof sheet. porting roof sheets extend from side'plate to This carline spans the distance between the side plate and are riveted thereto andto each opposite side plates of the car and is secured 5 other to form a rigid load sustaining structhereto. In the form illustrated in the draw-. 55

ture. ings Ihave shown the underlapping portion An object of the inventionis to improve the extended to form a U-shaped carline 6 withstructural relation between adjacent roof itsouter, mar in 7 secured to the body of the sheets so as to provide a Waterproof joint adjacentsheet. A 'carline of this configura- 10 therebetween by positioning the overlapping tion can easily be designed to accommodate '60 portions of the adjacent roof sheets on an inany vertical or horizontal loads by'varying its cline so as to form .a watershed. depth and width respectively. Further- Another object is to produce a durable an more, the carline and its integral roof sheet light weight roof of simple construction can. easily be pressed between forming dies.

which can be easily assembled and cheaply Any water which penetrates between the in- 6 manufactured. The invention consists princlined portions of adjacent sheets is caught cipally in the improved seam construction within the U-shapedcarline and not permithereinafter shown and described; and it also ted to come in contact with the lading. No consists in the combinations and arrangedrainage is provided for thisfwater because claimed. and will evaporate within the carline.

In the drawings: .Fig. 4 shows a modified form wherein the Fig. 1 is a fragmentary perspective view of carline 8 is not integral with a roof sheet but a railway car showing my roof applied there-' the upwardly inclined portion 5 of the undersheet overlaps the upper portion 9 of the can 7 Fig. 2 is an enlarged section on line 2-2 of line so that any water penetrating between Fi 1, I the roof sheets enters the valley of the car- Fig. 3 is a section on line 33 of Fig. 2. line and is not permitted to come in Contact Fig. 4 shows a modified form. with or damage the lading In my construction the car roof comprises The body portion 10 of the roof sheet bes0 a plurality of arched or apexed roof sheets 2 tween the upwardly inclined portion on one I which span the distance between the opposite edge and the downwardly inclined portion on side plates 3 of the car and are preferably sethe other edge is inclined toward the intecured thereto in any convenient manner. gral carline. p

Each roof sheet is provided with a down- The accompanying drawings illustrate the wardly inclined oblique portion adjacent one preferred form of the invention, though it is of its longitudinal sides and an upwardly in-v to be understood that the invention is not limclined oblique portion 5 adjacent its oppoited to the exact details of construction shown site longitudinal side and the sheets are and described, as it is obvious that various 40 positioned so that the downwardly inmodifications thereof within-the scope oftheclined portion of one sheet overlaps claims will occur to persons skilled in the art. and is preferably secured to the upwardly I claim: 1 inclined portion on the sheet next to it. I If i 1. A car roof comprising a plurality of desired, some water-proofing material, such roof sheets spanning the distance between the as tar paper, may be placed between the sheets opposite side plates of the car and secured; before they are riveted together. .With this thereto, each of said sheets comprising an 7 construction any water moving around upon inclined body portion having a downwardly the roof sheet would have to be forced up the inclined oblique portion at one side and an inclined surface before it could enter the car. 7 upwardly inclined oblique portion at its op- 50 In the preferred form the underlapping; posite side underlapping and secured to the oblique portion of the adjacent roof sheet.

2. A car roof comprising a plurality of roof sheets spanning the distance between the 0pposite side plates of the car and secured thereto, each of said sheets having a downwardly inclined oblique portion at one side, and an upwardly inclined oblique portion at its opposite side underlapping and secured to the oblique portion of the adjacent roof sheet, and a carline secured to the lapped portion of adjacent roof sheets and also secured to the opposite side plates.

WILLIAM G. POWELL. 

